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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY VERSION "1.0">
<!ENTITY COMMANDNAME "plugin-runner">
<!ENTITY TIMESTAMP "2008-09-02">
]>
<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>Mandos Manual</title>
<!-- Nwalsh’s docbook scripts use this to generate the footer: -->
<productname>Mandos</productname>
<productnumber>&VERSION;</productnumber>
<date>&TIMESTAMP;</date>
<authorgroup>
<author>
<firstname>Björn</firstname>
<surname>Påhlsson</surname>
<address>
<email>belorn@fukt.bsnet.se</email>
</address>
</author>
<author>
<firstname>Teddy</firstname>
<surname>Hogeborn</surname>
<address>
<email>teddy@fukt.bsnet.se</email>
</address>
</author>
</authorgroup>
<copyright>
<year>2008</year>
<holder>Teddy Hogeborn</holder>
<holder>Björn Påhlsson</holder>
</copyright>
<xi:include href="legalnotice.xml"/>
</refentryinfo>
<refmeta>
<refentrytitle>&COMMANDNAME;</refentrytitle>
<manvolnum>8mandos</manvolnum>
</refmeta>
<refnamediv>
<refname><command>&COMMANDNAME;</command></refname>
<refpurpose>
Run Mandos plugins. Pass data from first succesful one.
</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>&COMMANDNAME;</command>
<group rep="repeat">
<arg choice="plain"><option>--global-env=<replaceable
>VAR</replaceable><literal>=</literal><replaceable
>value</replaceable></option></arg>
<arg choice="plain"><option>-G
<replaceable>VAR</replaceable><literal>=</literal><replaceable
>value</replaceable> </option></arg>
</group>
<sbr/>
<group rep="repeat">
<arg choice="plain"><option>--env-for=<replaceable
>PLUGIN</replaceable><literal>:</literal><replaceable
>ENV</replaceable><literal>=</literal><replaceable
>value</replaceable></option></arg>
<arg choice="plain"><option>-E<replaceable>
PLUGIN</replaceable><literal>:</literal><replaceable
>ENV</replaceable><literal>=</literal><replaceable
>value</replaceable> </option></arg>
</group>
<sbr/>
<group rep="repeat">
<arg choice="plain"><option>--global-options=<replaceable
>OPTIONS</replaceable></option></arg>
<arg choice="plain"><option>-g<replaceable>
OPTIONS</replaceable> </option></arg>
</group>
<sbr/>
<group rep="repeat">
<arg choice="plain"><option>--options-for=<replaceable
>PLUGIN</replaceable><literal>:</literal><replaceable
>OPTIONS</replaceable></option></arg>
<arg choice="plain"><option>-o<replaceable>
PLUGIN</replaceable><literal>:</literal><replaceable
>OPTIONS</replaceable> </option></arg>
</group>
<sbr/>
<group rep="repeat">
<arg choice="plain"><option>--disable=<replaceable
>PLUGIN</replaceable></option></arg>
<arg choice="plain"><option>-d
<replaceable>PLUGIN</replaceable> </option></arg>
</group>
<sbr/>
<group rep="repeat">
<arg choice="plain"><option>--enable=<replaceable
>PLUGIN</replaceable></option></arg>
<arg choice="plain"><option>-e
<replaceable>PLUGIN</replaceable> </option></arg>
</group>
<sbr/>
<arg><option>--groupid=<replaceable
>ID</replaceable></option></arg>
<sbr/>
<arg><option>--userid=<replaceable
>ID</replaceable></option></arg>
<sbr/>
<arg><option>--plugin-dir=<replaceable
>DIRECTORY</replaceable></option></arg>
<sbr/>
<arg><option>--config-file=<replaceable
>FILE</replaceable></option></arg>
<sbr/>
<arg><option>--debug</option></arg>
</cmdsynopsis>
<cmdsynopsis>
<command>&COMMANDNAME;</command>
<group choice="req">
<arg choice="plain"><option>--help</option></arg>
<arg choice="plain"><option>-?</option></arg>
</group>
</cmdsynopsis>
<cmdsynopsis>
<command>&COMMANDNAME;</command>
<arg choice="plain"><option>--usage</option></arg>
</cmdsynopsis>
<cmdsynopsis>
<command>&COMMANDNAME;</command>
<group choice="req">
<arg choice="plain"><option>--version</option></arg>
<arg choice="plain"><option>-V</option></arg>
</group>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1 id="description">
<title>DESCRIPTION</title>
<para>
<command>&COMMANDNAME;</command> is a program which is meant to
be specified as <quote>keyscript</quote> in <citerefentry>
<refentrytitle>crypttab</refentrytitle>
<manvolnum>5</manvolnum></citerefentry> for the root disk. The
aim of this program is therefore to output a password, which
then <citerefentry><refentrytitle>cryptsetup</refentrytitle>
<manvolnum>8</manvolnum></citerefentry> will use to try and
unlock the root disk.
</para>
<para>
This program is not meant to be invoked directly, but can be in
order to test it. Note that any password obtained will simply
be output on standard output.
</para>
</refsect1>
<refsect1 id="purpose">
<title>PURPOSE</title>
<para>
The purpose of this is to enable <emphasis>remote and unattended
rebooting</emphasis> of client host computer with an
<emphasis>encrypted root file system</emphasis>. See <xref
linkend="overview"/> for details.
</para>
</refsect1>
<refsect1>
<title>OPTIONS</title>
<variablelist>
<varlistentry>
<term><option>--global-env
<replaceable>VAR</replaceable><literal>=</literal><replaceable
>value</replaceable></option></term>
<term><option>-e
<replaceable>VAR</replaceable><literal>=</literal><replaceable
>value</replaceable></option></term>
<listitem>
<para>
This option will add an environment variable setting to
all plugins. This will override any inherited environment
variable.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--env-for
<replaceable>PLUGIN</replaceable><literal>:</literal
><replaceable>ENV</replaceable><literal>=</literal
><replaceable>value</replaceable></option></term>
<term><option>-f
<replaceable>PLUGIN</replaceable><literal>:</literal
><replaceable>ENV</replaceable><literal>=</literal
><replaceable>value</replaceable></option></term>
<listitem>
<para>
This option will add an environment variable setting to
the <replaceable>PLUGIN</replaceable> plugin. This will
override any inherited environment variables or
environment variables specified using
<option>--global-env</option>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--global-options
<replaceable>OPTIONS</replaceable></option></term>
<term><option>-g
<replaceable>OPTIONS</replaceable></option></term>
<listitem>
<para>
Pass some options to <emphasis>all</emphasis> plugins.
<replaceable>OPTIONS</replaceable> is a comma separated
list of options. This is not a very useful option, except
for specifying the <quote><option>--debug</option></quote>
for all plugins.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--options-for
<replaceable>PLUGIN</replaceable><literal>:</literal
><replaceable>OPTION</replaceable></option></term>
<term><option>-o
<replaceable>PLUGIN</replaceable><literal>:</literal
><replaceable>OPTION</replaceable></option></term>
<listitem>
<para>
Pass some options to a specific plugin. <replaceable
>PLUGIN</replaceable> is the name (file basename) of a
plugin, and <replaceable>OPTIONS</replaceable> is a comma
separated list of options.
</para>
<para>
Note that since options are not split on whitespace, the
way to pass, to the plugin
<quote><filename>foo</filename></quote>, the option
<option>--bar</option> with the option argument
<quote>baz</quote> is either
<userinput>--options-for=foo:--bar=baz</userinput> or
<userinput>--options-for=foo:--bar,baz</userinput>, but
<emphasis>not</emphasis>
<userinput>--options-for="foo:--bar baz"</userinput>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--disable
<replaceable>PLUGIN</replaceable></option></term>
<term><option>-d
<replaceable>PLUGIN</replaceable></option></term>
<listitem>
<para>
Disable the plugin named
<replaceable>PLUGIN</replaceable>. The plugin will not be
started.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--enable
<replaceable>PLUGIN</replaceable></option></term>
<term><option>-e
<replaceable>PLUGIN</replaceable></option></term>
<listitem>
<para>
Re-enable the plugin named
<replaceable>PLUGIN</replaceable>. This is only useful to
undo a previous <option>--disable</option> option, maybe
from the config file.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--groupid
<replaceable>ID</replaceable></option></term>
<listitem>
<para>
Change to group ID <replaceable>ID</replaceable> on
startup. The default is 65534. All plugins will be
started using this group ID. <emphasis>Note:</emphasis>
This must be a number, not a name.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--userid
<replaceable>ID</replaceable></option></term>
<listitem>
<para>
Change to user ID <replaceable>ID</replaceable> on
startup. The default is 65534. All plugins will be
started using this user ID. <emphasis>Note:</emphasis>
This must be a number, not a name.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--plugin-dir
<replaceable>DIRECTORY</replaceable></option></term>
<listitem>
<para>
Specify a different plugin directory. The default is
<filename>/lib/mandos/plugins.d</filename>, which will
exist in the initial <acronym>RAM</acronym> disk
environment.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--config-file
<replaceable>FILE</replaceable></option></term>
<listitem>
<para>
Specify a different file to read additional options from.
See <xref linkend="files"/>. Other command line options
will override options specified in the file.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--debug</option></term>
<listitem>
<para>
Enable debug mode. This will enable a lot of output to
standard error about what the program is doing. The
program will still perform all other functions normally.
The default is to <emphasis>not</emphasis> run in debug
mode.
</para>
<para>
The plugins will <emphasis>not</emphasis> be affected by
this option. Use
<userinput><option>--global-options=--debug</option></userinput>
if complete debugging eruption is desired.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--help</option></term>
<term><option>-?</option></term>
<listitem>
<para>
Gives a help message about options and their meanings.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--usage</option></term>
<listitem>
<para>
Gives a short usage message.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--version</option></term>
<term><option>-V</option></term>
<listitem>
<para>
Prints the program version.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id="overview">
<title>OVERVIEW</title>
<xi:include href="overview.xml"/>
<para>
This program will run on the client side in the initial
<acronym>RAM</acronym> disk environment, and is responsible for
getting a password. It does this by running plugins, one of
which will normally be the actual client program communicating
with the server.
</para>
</refsect1>
<refsect1 id="plugins">
<title>PLUGINS</title>
<para>
This program will get a password by running a number of
<firstterm>plugins</firstterm>, which are simply executable
programs in a directory in the initial <acronym>RAM</acronym>
disk environment. The default directory is
<filename>/lib/mandos/plugins.d</filename>, but this can be
changed with the <option>--plugin-dir</option> option. The
plugins are started in parallel, and the first plugin to output
a password <emphasis>and</emphasis> exit with a successful exit
code will make this plugin-runner output the password from that
plugin, stop any other plugins, and exit.
</para>
</refsect1>
<refsect1 id="fallback">
<title>FALLBACK</title>
<para>
If no plugins succeed, this program will, as a fallback, ask for
a password on the console using <citerefentry><refentrytitle
>getpass</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
and output it. This is not meant to be the normal mode of
operation, as there is a separate plugin for getting a password
from the console.
</para>
</refsect1>
<refsect1 id="exit_status">
<title>EXIT STATUS</title>
<para>
Exit status of this program is zero if no errors were
encountered, and otherwise not. The fallback (see <xref
linkend="fallback"/>) may or may not have succeeded in either
case.
</para>
</refsect1>
<refsect1 id="environment">
<title>ENVIRONMENT</title>
<para>
This program does not use any environment variables itself, it
only passes on its environment to all the plugins. The
environment passed to plugins can be modified using the
<option>--global-env</option> and <option>--env-for</option>
optins.
</para>
</refsect1>
<refsect1 id="files">
<title>FILES</title>
<para>
<variablelist>
<varlistentry>
<term><filename
>/conf/conf.d/mandos/plugin-runner.conf</filename></term>
<listitem>
<para>
Since this program will be run as a keyscript, there is
little to no opportunity to pass command line arguments
to it. Therefore, it will <emphasis>also</emphasis>
read this file and use its contents as
whitespace-separated command line options. Also,
everything from a <quote>#</quote> character to the end
of a line is ignored.
</para>
<para>
This program is meant to run in the initial RAM disk
environment, so that is where this file is assumed to
exist. The file does not need to exist in the normal
file system.
</para>
<para>
This file will be processed <emphasis>before</emphasis>
the normal command line options, so the latter can
override the former, if need be.
</para>
<para>
This file name is the default; the file to read for
arguments can be changed using the
<option>--config-file</option> option.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 id="bugs">
<title>BUGS</title>
<para>
</para>
</refsect1>
<refsect1 id="examples">
<title>EXAMPLE</title>
<para>
</para>
</refsect1>
<refsect1 id="security">
<title>SECURITY</title>
<para>
</para>
</refsect1>
<refsect1 id="see_also">
<title>SEE ALSO</title>
<para>
<citerefentry><refentrytitle>cryptsetup</refentrytitle>
<manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>mandos</refentrytitle>
<manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>password-prompt</refentrytitle>
<manvolnum>8mandos</manvolnum></citerefentry>,
<citerefentry><refentrytitle>password-request</refentrytitle>
<manvolnum>8mandos</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>
<!-- Local Variables: -->
<!-- time-stamp-start: "<!ENTITY TIMESTAMP [\"']" -->
<!-- time-stamp-end: "[\"']>" -->
<!-- time-stamp-format: "%:y-%02m-%02d" -->
<!-- End: -->
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